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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...
Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water, its contents and its boundaries. The water may be in the ocean, a lake, a river or a tank. Typical frequencies associated with underwater acoustics are between 10 ...
Video shows the whale breaching the water and striking the rear of the boat. At least one of the boaters is seen plunging into the water. ocean whale breach animal wild (Courtesy Colin Yager)
An electrodynamic speaker driver, often called simply a speaker driver when the type is implicit, is an individual transducer that converts an electrical audio signal to sound waves. While the term is sometimes used interchangeably with the term speaker ( loudspeaker ), it is usually applied to specialized transducers which reproduce only a ...
The Canadian singer-songwriter released his new single, "Why Why Why," alongside its music video and a second song, " Isn't That Enough ," both from his upcoming fifth album, Shawn, on Aug. 8 ...
Even while carrying $1.13 trillion in credit card debt, many Americans are still willing to splurge on travel and entertainment. But this summer it will cost even more thanks to “ funflation ...
Bloop was an ultra-low-frequency, high amplitude underwater sound detected by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997. [1] By 2012, earlier speculation that the sound originated from a marine animal [2] was replaced by NOAA's description of the sound as being consistent with noises generated via non-tectonic ...